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Intrinsic factor binds with vitamin B12 in the small intestine, forming a complex that is essential for the vitamins absorption
A study from the Netherlands found the 25th to 75th percentile among people 65 to be 180 to 300 nmol/l (van Wijngaarden, 2017)
While its easy to blame stress or lack of sleep, theres often an underlying nutritional deficiency that goes undiagnosed: vitamin B12 deficiency
How long does it take for vitamin B12 levels to recover after stopping nitrous oxide
Handling Notes Do not freeze once reconstituted
Neurological Symptoms Numbness or tingling in the hands and feet
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